US8892312B2 - Side collision determination apparatus for vehicle and high voltage power supply shut-off apparatus - Google Patents

Side collision determination apparatus for vehicle and high voltage power supply shut-off apparatus Download PDF

Info

Publication number
US8892312B2
US8892312B2 US13/043,126 US201113043126A US8892312B2 US 8892312 B2 US8892312 B2 US 8892312B2 US 201113043126 A US201113043126 A US 201113043126A US 8892312 B2 US8892312 B2 US 8892312B2
Authority
US
United States
Prior art keywords
collision
acceleration
vehicle
occurred
sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US13/043,126
Other languages
English (en)
Other versions
US20110224869A1 (en
Inventor
Tomohiro Inagaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Assigned to MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA reassignment MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INAGAKI, TOMOHIRO
Publication of US20110224869A1 publication Critical patent/US20110224869A1/en
Application granted granted Critical
Publication of US8892312B2 publication Critical patent/US8892312B2/en
Assigned to MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA reassignment MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA CHANGE OF ADDRESS Assignors: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/04—Cutting off the power supply under fault conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B60R2021/01322—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value comprising variable thresholds, e.g. depending from other collision parameters

Definitions

  • the invention relates to a side collision determination apparatus for a vehicle which determines whether a colliding object has collided with a side surface of a vehicle and a high voltage power supply shut-off apparatus which determines that a colliding object has collided with a side surface of an electric vehicle and thus shuts off power supply to a high voltage part of a high voltage power supply.
  • the acceleration sensors are mounted to B pillars that are columns supporting a roof of the vehicle and are positioned at centers of side surfaces.
  • the related art suggest detecting a distance to the colliding object or provide other sensors such as a deformation sensor, a pressure sensor and the like (for example, Patent Documents 1 to 3).
  • An electric vehicle is provided with a high voltage power supply for driving a motor.
  • a high voltage power supply for driving a motor.
  • a part relating to the high voltage, a safety belt and the like may be damaged.
  • the high voltage power supply is shut off when the collision is detected (for example, Patent Document 4).
  • the shut-off operation of the high voltage power supply may be performed on the basis of information of the acceleration sensors for the safety apparatus such as an airbag and the like.
  • a collision which is a trigger for shutting off the high voltage
  • a side collision it is necessary to detect all of collisions from the front to the most rearward of the side surface of the vehicle.
  • the side collisions of the front and the center of the side surface it is considered to detect the collisions with the acceleration sensors and the like for the airbag, which are mounted to the B pillars, and to thus shut off the high voltage.
  • a side collision determination apparatus for a vehicle that includes a side surface including a right side surface and a left side surface, the side collision determination apparatus comprising: a first acceleration sensor and a second acceleration sensor each of which is mounted on a sensor-mounted position of each side surface and each of which is configured to detect acceleration; and a determination unit which is configured to perform determination whether a level of collision, which has occurred at a part of the side surface, is equal to or higher than a prescribed level, the determination unit which performs the determination based on the acceleration detected by a non-collision side one of the first and second acceleration sensors when the part of the side surface at which the collision has been occurred is adjacent to the sensor-mounted position, the determination unit which performs the determination based on the acceleration detected by a collision side one of the first and second acceleration sensors when the part of the side surface at which the collision has been occurred is apart from the sensor-mounted position.
  • the side collision determination apparatus may further include a storage unit which is configured to store a threshold preset correspondingly to the first acceleration sensor and the second acceleration sensor.
  • the determination unit may perform the determination based on comparison results of the acceleration detected by the first and second acceleration sensors and the threshold.
  • the threshold may include a first value, and when one of the first and second acceleration sensors detects acceleration being greater than the first value, the determination unit determines that the part of the side surface at which the collision has been occurred is adjacent to the sensor-mounted position of the other of the first and second acceleration sensors and performs the determination based on the acceleration detected by the one of the first and second acceleration sensors.
  • the threshold may include a second value being smaller than the first value, and when one of the first and second acceleration sensors detects acceleration being greater than the second value and smaller than first value, the determination unit determines that the part of the side surface at which the collision has been occurred is apart from the sensor-mounted position of the other of the first and second acceleration sensors and performs the determination based on the acceleration detected by the one of the first and second acceleration sensors.
  • the threshold may be acceleration of the first acceleration sensor or acceleration of the second acceleration sensor, which is previously obtained by performing a collision test of a minimum level with which it should be determined that collision has occurred at the side surface.
  • the threshold may be acceleration of the first acceleration sensor or acceleration of the second acceleration sensor, which is previously obtained by performing a collision test of a maximum level with which it should not be determined that collision has occurred at the side surface.
  • the first acceleration sensor and the second acceleration sensor may be mounted on one of B pillars, side sills and a floor of the vehicle.
  • the first acceleration sensor and the second acceleration sensor may be acceleration sensors that are used for safety apparatuses including airbags.
  • a high voltage power supply shut-off apparatus comprising: the side collision determination apparatus; and a high voltage power supply control unit that shuts off power supply to a high voltage part of a high voltage power supply when the determination unit determines that the level of collision is equal to or higher than the prescribed level.
  • FIG. 1 is a plan view showing an example of arrangement of acceleration sensors that are used for a side collision determination apparatus for a vehicle according to an embodiment of the invention.
  • FIG. 2 is a functional block diagram showing a structure of a high voltage power supply shut-off apparatus according to an embodiment of the invention.
  • FIG. 3 illustrates operations of left and right acceleration sensors when a collision occurs at a center part of a front-rear direction of a side surface of a vehicle.
  • FIG. 4 illustrates operations of left and right acceleration sensors when a collision occurs at a rear of a side surface of a vehicle.
  • FIG. 5 is a flow chart showing a sequence in which a high voltage power supply shut-off apparatus according to an embodiment of the invention generates a high voltage power supply shut-off signal.
  • FIG. 6 is a schematic view of a determination circuit of a side collision determination apparatus for a vehicle according to an embodiment of the invention.
  • a vehicle 10 in which a side collision determination apparatus and a high voltage power supply shut-off apparatus are mounted is a vehicle having a high voltage power supply (for example, an electric vehicle and a hybrid vehicle).
  • the vehicle 10 includes a high voltage power supply 28 that includes a battery and a vehicle load 29 that operates with a high voltage, in addition to a high voltage power supply shut-off apparatus 20 .
  • the high voltage power supply shut-off apparatus 20 includes left and right acceleration sensors 12 , 14 , an ECU (Electronic Control Unit) 22 , a switch 24 and a main relay 26 .
  • the high voltage power supply shut-off apparatus 20 shuts off power supply to the vehicle load 29 from the high voltage power supply 28 , based on detected acceleration supplied from the left and right acceleration sensors 12 , 14 when a collision, a level of which is equal to or higher than a prescribed level, has occurred at the vehicle 10 .
  • the left acceleration sensor 12 is mounted on a left side surface of the vehicle 10 and the right acceleration sensor 14 is mounted on a right side surface of the vehicle 10 .
  • the left and right acceleration sensors 12 , 14 are respectively mounted on positions of the vehicle body having high rigidity.
  • the left and right acceleration sensors 12 , 14 detect acceleration of side parts of the vehicle 10 , which is caused due to the impact applied to the vehicle 10 , and output the detected acceleration.
  • the left and right acceleration sensors 12 , 14 are respectively mounted on left and right B pillars between front seat doors 16 and rear seat doors 18 .
  • the left and right acceleration sensors 12 , 14 are mounted on approximate center parts of the front-rear direction of the left and right side surfaces of the vehicle 10 .
  • the positions on which the left and right acceleration sensors 12 , 14 are mounted are not limited to the B pillars.
  • the sensors may be mounted on the other positions such as side sills, a floor and the like.
  • acceleration sensors used for the safety apparatuses such as airbags may be used.
  • the left and right acceleration sensors 12 , 14 may be independently provided.
  • the ECU 22 is a micro computer to which a CPU, a ROM for storing programs in which a control program and the like are stored, a RAM that provides working areas, an interface unit interfacing with peripheral circuits and the like, all of which are not shown, are connected through buses.
  • the ECU 22 operates as the CPU executes the control program.
  • the ECU 22 includes a sensor-detected value comparison determination unit 202 , a relay driving control unit 204 and a ROM 206 .
  • the CPU executes the control program, the sensor-detected value comparison determination unit 202 and the relay driving control unit 204 are implemented. Meanwhile, in the embodiment, the operations of the sensor-detected value comparison determination unit 202 and the relay driving control unit 204 are implemented with the single ECU.
  • the sensor-detected value comparison determination unit 202 and the relay driving control unit 204 are implemented by a separate ECU.
  • the collision determination apparatus is configured by the left acceleration sensor 12 , the right acceleration sensor 14 and the ECU 22 .
  • the sensor-detected value comparison determination unit 202 corresponds to a determination unit, and the ROM 206 corresponds to a storage unit.
  • the sensor-detected value comparison determination unit 202 is supplied with detection signals of the left acceleration sensor 12 and the right acceleration sensor 14 .
  • the outputs of the left and right acceleration sensors 12 , 14 are directly supplied to the sensor-detected value comparison determination unit 202 of the ECU 22 .
  • an integration process, a moving average process and the other processes may be performed by LPF and the like for the detected accelerations of the left and right acceleration sensors 12 , 14 , and then the processed accelerations may be supplied to the ECU 22 . This is because such implementation is advantageous to avoid a malfunction caused due to an instant position variation and the like of the vehicle 10 .
  • the sensor-detected value comparison determination unit 202 compares the detected accelerations supplied from the left and right acceleration sensors 12 , 14 with threshold values of accelerations that are stored in the ROM 206 in advance and that are preset correspondingly to the left and right acceleration sensors 12 , 14 , determines whether a collision to be detected has occurred and supplies a determination signal to the relay driving control unit 204 .
  • the relay driving control unit 204 generates a control signal for shutting off the high voltage power supply, based on the determination signal, and then outputs the control signal to the switch 24 .
  • the switch 24 turns on/off current supply to the main relay 26 , based on the control signal.
  • the main relay 26 includes an excitation coil 262 and a relay device 264 .
  • the switch 24 When the switch 24 is turned on, the current is supplied to the excitation coil 262 . As the current flows in the coil, the excitation coil 262 is excited and the relay device 264 is turned on. Thereby, the power is supplied to the vehicle load 29 from the high voltage power supply 28 .
  • the switch 24 When the switch 24 is turned off, the current supply to the excitation coil 262 is stopped. Since the current does not flow in the excitation coil 262 , the excitation coil 262 is not excited and the relay device 264 is turned off. Thereby, the power supply to the vehicle load 29 from the high voltage power supply 28 is shut off.
  • the relay driving control unit 204 , the switch 25 and the main relay 26 configure the high voltage power supply control unit.
  • FIGS. 3 and 4 show cases where a colliding object 30 has collided with the vehicle 10 .
  • a rightward acceleration of the vehicle 10 is referred to as a positive acceleration that is detected by the acceleration sensors 12 , 14 and a leftward acceleration of the vehicle 10 is referred to as a negative acceleration that is detected by the acceleration sensors 12 , 14 .
  • acceleration detected by the acceleration sensors 12 , 14 indicates a positive value.
  • acceleration detected by the acceleration sensors 12 , 14 indicates a negative value. Accordingly, based on the positive or negative value of the acceleration detected by the acceleration sensors 12 , 14 , it is possible to determine at which side of the left and right sides of the vehicle 10 the collision has occurred.
  • a direction of a sensitive axis of the left acceleration sensor 12 may be changed due to deformation of the vehicle body.
  • an absolute value of detected acceleration G 1 ′ is detected as a value that is smaller than an absolute value of actual acceleration G 1 of the collision.
  • the right acceleration sensor 14 mounted on the right side surface that is a non-collision side of the vehicle 10 can accurately detect the acceleration without a change of a direction of a sensitive axis thereof. Accordingly, when the colliding object 30 collides with the part adjacent to the sensor-mounted position of the left side surface, the acceleration detected by the right acceleration sensor 14 is compared with a first threshold value Th 1 which is set in advance. When the acceleration detected by the right acceleration sensor 14 is higher than the first threshold value Th 1 , it is determined that the collision has occurred at the left side surface.
  • the first threshold value Th 1 is greater than zero (Th 1 >0).
  • the first threshold value Th 1 is obtained as acceleration that the right acceleration sensor 14 detects with respect to a collision of a minimum level with which it should be determined that a collision has occurred by carrying out a collision test on the part adjacent to the sensor-mounted position of the left side surface.
  • the first threshold value Th 1 is a positive acceleration that the right acceleration sensor 14 detects when a collision of a minimum level, with which a collision is to be determined, has occurred at the part adjacent to the sensor-mounted position of the left side surface of the vehicle 10 .
  • the colliding object 30 collides with a part of the right side surface, which is adjacent to a sensor-mounted position on which the right acceleration sensor 14 is mounted, of the right side surface of the vehicle 10 , it is the same as the above case where the colliding object 30 collides with the part adjacent to the sensor-mounted position of the left side surface.
  • the colliding object 30 collides with the part adjacent to the sensor-mounted position of the right side surface of the vehicle 10 , there is a possibility that an absolute value of the acceleration detected by the right acceleration sensor 14 of the collision side will be detected as a value that is smaller than an absolute value of the actual acceleration. Therefore, the acceleration ( ⁇ 0) detected by the left acceleration sensor 12 is compared with a second threshold value Th 2 ( ⁇ 0).
  • the second threshold value Th 2 is obtained as acceleration that the left acceleration sensor 12 detects with respect to a collision of a minimum level with which it should be determined that a collision has occurred by carrying out a collision test on the part adjacent to the sensor-mounted position of the right side surface.
  • the second threshold value Th 2 is a negative acceleration that the left acceleration sensor 12 detects when a collision of a minimum level, with which a collision is to be determined, has occurred at the part adjacent to the sensor-mounted position of the right side surface of the vehicle 10 .
  • an absolute value of acceleration G 3 ′ (>0) that is detected by the right acceleration sensor 14 is detected as a value that is smaller than an absolute value of actual acceleration G 3 .
  • the acceleration G 3 is mainly caused after deformation of the vehicle body due to the collision, the vehicle has started to rotate from the time point at which the acceleration has been still generated high, so that the detected acceleration G 3 ′ is smaller than the actual acceleration.
  • the position on which the left acceleration sensor 12 is mounted is also rotated in the R direction of FIG. 4 .
  • the acceleration G 4 is little affected by the rotation of the vehicle body, in comparison with the acceleration G 3 .
  • a value of the acceleration detected by the left acceleration sensor 12 is compared with a third threshold value Th 3 which is set in advance.
  • Th 3 the third threshold value
  • the third threshold value Th 3 is greater than zero (Th 3 >0).
  • the third threshold value Th 3 is obtained as acceleration that the left acceleration sensor 12 detects with respect to a collision of a minimum level with which it should be determined that a collision has occurred by carrying out a collision test on the rearward part of the left side surface.
  • the third threshold value Th 3 is a positive acceleration that the left acceleration sensor 12 detects when a collision of a minimum level, with which a collision is to be determined, has occurred at the rearward part of the left side surface of the vehicle 10 .
  • the fourth threshold value Th 4 is obtained as acceleration that the right acceleration sensor 14 detects with respect to a collision of a minimum level with which it should be determined that a collision has occurred by carrying out a collision test on the rearward part of the right side surface.
  • the fourth threshold value Th 4 is a negative acceleration that the right acceleration sensor 14 detects when a collision of a minimum level, with which a collision is to be determined, has occurred at the rearward part of the right side surface of the vehicle 10 .
  • the absolute values of the first and second threshold values Th 1 , Th 2 are equal to each other and the absolute values of the third and fourth threshold values Th 3 , Th 4 are equal to each other.
  • the determination may be different depending on the rigidity or the position of the high voltage part, it may be possible that Th 1 ⁇ Th 2 and Th 3 ⁇ Th 4 .
  • the absolute values of the first and second threshold values Th 1 , Th 2 are greater than the absolute values of the third and fourth threshold values Th 3 , Th 4 .
  • the ECU 22 compares the first to fourth threshold values Th 1 , Th 2 , Th 3 , Th 4 with the respective detected accelerations. A sequence thereof will be specifically described using a flowchart of FIG. 5 .
  • the ECU 22 compares the acceleration detected by the right acceleration sensor 14 with the first threshold value Th 1 so as to detect a collision at the center part of the front-rear direction of the left side surface of the vehicle 10 (S 102 ). When it is determined that the acceleration detected by the right acceleration sensor 14 is higher than the first threshold value Th 1 , the ECU determines that a collision has occurred and outputs a high voltage power supply shut-off signal (S 110 ). When the acceleration detected by the right acceleration sensor 14 is equal to or smaller than the first threshold value Th 1 , the sequence proceeds to step S 104 .
  • step S 104 the ECU 22 compares the acceleration detected by the left acceleration sensor 12 with the second threshold value Th 2 so as to detect a collision at the center part of the front-rear direction of the right side surface of the vehicle 10 (S 104 ).
  • the sequence proceeds to step S 110 and a high voltage power supply shut-off signal is output.
  • the acceleration detected by the left acceleration sensor 12 is equal to or greater than the second threshold value Th 2 , the sequence proceeds to step S 106 .
  • step S 106 the ECU 22 compares the acceleration detected by the left acceleration sensor 12 with the third threshold value Th 3 so as to detect a collision at the rearward part of the left side surface of the vehicle 10 (S 106 ).
  • step S 110 the sequence proceeds to step S 110 and a high voltage power supply shut-off signal is output.
  • step S 108 the ECU 22 compares the acceleration detected by the right acceleration sensor 14 with the fourth threshold value Th 4 so as to detect a collision at the rearward part of the right side surface of the vehicle 10 (S 108 ).
  • step S 110 When the acceleration detected by the right acceleration sensor 14 is smaller than the third threshold value Th 4 , the sequence proceeds to step S 110 and a high voltage power supply shut-off signal is output.
  • the sequence proceeds to step S 112 and a high voltage power supply shut-off signal is output.
  • the sensor-detected value comparison determination unit 202 determines whether a collision of a prescribed level or higher has not occurred at the side surfaces and the process is ended.
  • the sensor-detected value comparison determination unit 202 determines whether a collision of a prescribed level or higher has occurred at the side surface of the vehicle, as follows.
  • the selection of the left and right acceleration sensors 12 , 14 is made in such a way that when a collision has occurred at the part adjacent to the position on which anyone of the left and right acceleration sensors 12 , 14 is mounted, the acceleration sensor mounted on the non-collision side is selected.
  • the selection of the left and right acceleration sensors 12 , 14 is made in such a way that when a collision has occurred at the rearward part of the side surface and the left and right acceleration sensors 12 , 14 are mounted at the positions apart from the part at which the collision has occurred, the acceleration sensor mounted on the collision side is selected.
  • the selection of the acceleration sensors is made on the basis of the comparison results of the acceleration detected by the right acceleration sensor 14 and the first and fourth threshold values Th 1 , Th 4 and the comparison results of the acceleration detected by the left acceleration sensor 12 and the second and third threshold values Th 2 , Th 3 .
  • the sensor-detected value comparison determination unit 202 may be configured by a collision determination circuit 40 shown in FIG. 6 .
  • the collision determination circuit 40 includes first to fourth comparators 42 , 44 , 46 , 48 and first, second and third OR circuits 50 , 52 , 54 .
  • an output of the first comparator 42 becomes an “H” level.
  • the acceleration ( ⁇ 0) detected by the left acceleration sensor 12 is smaller than the second threshold value Th 2 , i.e., a collision exceeding a prescribed value has occurred at the center part of the front-rear direction of the right side surface of the vehicle 10 , an output of the second comparator 44 becomes an “H” level.
  • an output of the third comparator 46 becomes an “H” level.
  • an output of the fourth comparator 48 becomes an “H” level.
  • the outputs of the first and second comparators 42 , 44 are input to the first OR circuit 50 and the outputs of the third and fourth comparators 46 , 48 are input to the second OR circuit 52 .
  • Outputs of the first and second OR circuits 50 , 52 are input to the third OR circuit 54 and an output of the third OR circuit 54 is output as a determination result of the collision determination circuit 40 .
  • an output of the collision determination circuit 40 becomes an “H” level.
  • the main relay 24 is turned off to shut off the power supply to the vehicle load 29 from the high voltage power supply 28 .
  • the acceleration sensor mounted on the non-collision side is selected, and when the collision has occurred at the rearward part of the side surface which is apart from the positions on which the left and right acceleration sensors 12 , 14 are mounted, the acceleration sensor mounted on the collision side is selected. Then, it is determined whether or not the collision is occurred based on the acceleration detected by the selected acceleration sensor. Accordingly, since it is sufficient to mount only two acceleration sensors on the vehicle 10 , it is advantageous to certainly detect the side collision of the vehicle while effectively using the interior space of the vehicle and reducing the cost.
  • the high voltage power supply 28 is shut off when a collision is detected using the side collision determination apparatus. Accordingly, it is advantageous to certainly shut off a high voltage power supply when a side collision of the vehicle occurs while effectively using the interior space of the vehicle and reducing the cost.
  • the side collision determination apparatus for the vehicle of the invention is not applied to only the shutting off of the high voltage power supply 28 .
  • the invention is applied to any function necessary to detect a collision with a side and a front of a subject.
  • the acceleration sensor of the collision side is selected. Then, it is determined whether or not the collision is occurred based on the acceleration detected by the selected acceleration sensor. Accordingly, since it is sufficient to mount only two acceleration sensors on the vehicle, it is advantageous to certainly detect the side collision of the vehicle while effectively using the interior space of the vehicle and reducing the cost. According to an aspect of the invention, the high voltage power supply is shut off based on the collision that is detected using the side collision determination apparatus. Accordingly, it is advantageous to certainly shut off a high voltage power supply when a side collision of the vehicle occurs while effectively using the interior space of the vehicle and reducing the cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
US13/043,126 2010-03-09 2011-03-08 Side collision determination apparatus for vehicle and high voltage power supply shut-off apparatus Active 2033-04-05 US8892312B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010051246A JP5251905B2 (ja) 2010-03-09 2010-03-09 車両用側面衝突判定装置および高電圧電源遮断装置
JPP2010-051246 2010-03-09

Publications (2)

Publication Number Publication Date
US20110224869A1 US20110224869A1 (en) 2011-09-15
US8892312B2 true US8892312B2 (en) 2014-11-18

Family

ID=44147570

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/043,126 Active 2033-04-05 US8892312B2 (en) 2010-03-09 2011-03-08 Side collision determination apparatus for vehicle and high voltage power supply shut-off apparatus

Country Status (4)

Country Link
US (1) US8892312B2 (de)
EP (1) EP2364883B1 (de)
JP (1) JP5251905B2 (de)
CN (1) CN102189933B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140318245A1 (en) * 2011-11-24 2014-10-30 Dainese S.P.A. Impact detection device
US20150149007A1 (en) * 2013-11-26 2015-05-28 Hyundai Motor Company Vehicular control system and its operating method
US20150344039A1 (en) * 2013-11-06 2015-12-03 Hitachi Automotive Systems, Ltd. Vehicuar control device and fail-safe method
US20220340009A1 (en) * 2019-10-31 2022-10-27 Great Wall Motor Company Limited Vehicle control device, vehicle control system and vehicle

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424026A (zh) * 2011-11-22 2012-04-25 何明 一种防止车辆撞击后由于电气短路引起火灾的方法
CN102490615A (zh) * 2011-11-28 2012-06-13 金龙联合汽车工业（苏州）有限公司 一种电动力汽车高压安全保护装置
CN102611073A (zh) * 2012-04-16 2012-07-25 吉林大学 汽车电气火灾断电保护系统
CN103419641A (zh) * 2012-05-17 2013-12-04 台塑汽车货运股份有限公司 外挂型电池防触电装置
JP2014046892A (ja) * 2012-09-04 2014-03-17 Mazda Motor Corp 車両用乗員保護装置および車両
US10315521B2 (en) * 2013-07-05 2019-06-11 Nissan Motor Co., Ltd. Vehicle power supply system
CN103332160A (zh) * 2013-07-16 2013-10-02 常州先进制造技术研究所 汽车被动保护系统安全气囊控制器
JP6193714B2 (ja) 2013-10-04 2017-09-06 アイシン精機株式会社 駐車支援装置
JP5911021B2 (ja) * 2013-10-16 2016-04-27 本田技研工業株式会社 車両衝突判定装置
JP6042308B2 (ja) * 2013-10-29 2016-12-14 本田技研工業株式会社 車両衝突判定装置
KR101693991B1 (ko) * 2015-05-18 2017-01-17 현대자동차주식회사 친환경 차량의 제어 시스템 및 방법
US9969343B2 (en) * 2015-07-24 2018-05-15 Robert Bosch Gmbh Methods and systems for managing an electrical connection between a power regulating device and an energy storage device included in a vehicle
CN105346396A (zh) * 2015-11-10 2016-02-24 北京新能源汽车股份有限公司 车辆碰撞瞬间自动切断高压电器的方法、系统及车辆
CN108657102A (zh) * 2017-04-01 2018-10-16 上海汽车集团股份有限公司 一种车辆安全防护方法、系统及行车控制装置
CN106956677B (zh) * 2017-04-10 2019-06-07 重庆大学 一种汽车安全预警方法及系统
JP2018176952A (ja) * 2017-04-11 2018-11-15 トヨタ自動車株式会社 衝撃判定方法、衝撃判定装置、衝撃判定プログラム、衝撃データ抽出方法、衝撃データ抽出装置、衝撃データ抽出プログラム
JP6988374B2 (ja) * 2017-10-31 2022-01-05 株式会社デンソー 車両回転検出装置
JP7432853B2 (ja) * 2019-09-27 2024-02-19 パナソニックＩｐマネジメント株式会社 衝撃検出装置、及び蓄電パック
CN112793424B (zh) * 2019-10-24 2022-10-18 大陆汽车电子（连云港）有限公司 基于加速度传感器的信号的碰撞时车辆电池断电的方法及装置
JP7316316B2 (ja) * 2021-03-25 2023-07-27 本田技研工業株式会社 車両
CN114771259B (zh) * 2022-03-24 2025-06-10 厦门金龙联合汽车工业有限公司 一种新能源车辆碰撞检测及保护控制方法
KR20240029905A (ko) * 2022-08-29 2024-03-07 현대자동차주식회사 차량의 승객 보호장치 및 보호방법
CN116552441B (zh) * 2023-06-15 2025-10-03 阿维塔科技(重庆)有限公司 一种车辆碰撞识别方法以及装置

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338062A (en) * 1991-09-11 1994-08-16 Toyota Jidosha Kabushiki Kaisha Side collision sensor system for side airbag apparatus
DE19651123C1 (de) 1996-12-09 1998-06-18 Siemens Ag Steuervorrichtung in einem Kraftfahrzeug
US6018980A (en) * 1997-04-21 2000-02-01 Nec Home Electronics, Ltd. Method and device for determining deformation of a vehicle side part
US6023664A (en) * 1996-10-16 2000-02-08 Automotive Systems Laboratory, Inc. Vehicle crash sensing system
DE10114277C1 (de) 2001-03-23 2002-10-02 Daimler Chrysler Ag Vorrichtung zur Erkennung eines Seitenaufpralls bei einem Kraftfahrzeug
US20040032322A1 (en) * 2001-05-16 2004-02-19 Pascal Kocher Device for sensing lateral impact
US20040050610A1 (en) * 2002-09-18 2004-03-18 Kiminari Kawasoe Vehicular passenger protection system against lateral collision
US20050107933A1 (en) * 2003-11-17 2005-05-19 Fujitsu Ten Limited Airbag apparatus
US6917866B2 (en) * 2001-01-27 2005-07-12 Robert Bosch Gmbh Method for sensing side impacts in a vehicle
US20070000711A1 (en) * 2005-07-01 2007-01-04 Denso Corporation Passenger protection system for protecting passenger in vehicle from collision
JP2007118797A (ja) 2005-10-28 2007-05-17 Toyota Motor Corp 衝突判定システム
US7281599B2 (en) * 2004-01-16 2007-10-16 Denso Corporation Passenger protection system
US20080046148A1 (en) * 2004-04-21 2008-02-21 Bosch Corporation Control Apparatus for Occupant Restraint Device
US7363997B2 (en) * 2004-11-26 2008-04-29 Honda Motor Co., Ltd. Fuel cell vehicle
JP2008137491A (ja) 2006-12-01 2008-06-19 Calsonic Kansei Corp 車両用側面衝突検知装置
EP2045144A1 (de) 2007-10-02 2009-04-08 Continental Automotive GmbH Verfahren zum Erkennen einer Kollisionsseite bei einem Frontalaufprall
JP2009090816A (ja) 2007-10-09 2009-04-30 Honda Motor Co Ltd 車両の衝突判定装置
JP2009101837A (ja) 2007-10-23 2009-05-14 Calsonic Kansei Corp 乗員保護制御装置
US7556119B2 (en) * 2006-03-31 2009-07-07 Denso Corporation Vehicle collision sensing system
US8155842B2 (en) * 2008-02-25 2012-04-10 Denso Corporation Occupant protection device for vehicle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5826902A (en) * 1996-01-22 1998-10-27 Trw Inc. Method and apparatus for sensing impact crash conditions with safing function
JP4244839B2 (ja) * 2004-03-26 2009-03-25 株式会社デンソー 車両の衝突判定装置
JP2006192968A (ja) * 2005-01-11 2006-07-27 Toyota Motor Corp 乗員保護装置の起動制御装置

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5338062A (en) * 1991-09-11 1994-08-16 Toyota Jidosha Kabushiki Kaisha Side collision sensor system for side airbag apparatus
US6023664A (en) * 1996-10-16 2000-02-08 Automotive Systems Laboratory, Inc. Vehicle crash sensing system
DE19651123C1 (de) 1996-12-09 1998-06-18 Siemens Ag Steuervorrichtung in einem Kraftfahrzeug
US6018980A (en) * 1997-04-21 2000-02-01 Nec Home Electronics, Ltd. Method and device for determining deformation of a vehicle side part
US6917866B2 (en) * 2001-01-27 2005-07-12 Robert Bosch Gmbh Method for sensing side impacts in a vehicle
DE10114277C1 (de) 2001-03-23 2002-10-02 Daimler Chrysler Ag Vorrichtung zur Erkennung eines Seitenaufpralls bei einem Kraftfahrzeug
US20040032322A1 (en) * 2001-05-16 2004-02-19 Pascal Kocher Device for sensing lateral impact
US7516004B2 (en) * 2002-09-18 2009-04-07 Denso Corporation Vehicular passenger protection system against lateral collision
US20040050610A1 (en) * 2002-09-18 2004-03-18 Kiminari Kawasoe Vehicular passenger protection system against lateral collision
US20050107933A1 (en) * 2003-11-17 2005-05-19 Fujitsu Ten Limited Airbag apparatus
US7281599B2 (en) * 2004-01-16 2007-10-16 Denso Corporation Passenger protection system
US20080046148A1 (en) * 2004-04-21 2008-02-21 Bosch Corporation Control Apparatus for Occupant Restraint Device
US7363997B2 (en) * 2004-11-26 2008-04-29 Honda Motor Co., Ltd. Fuel cell vehicle
US20070000711A1 (en) * 2005-07-01 2007-01-04 Denso Corporation Passenger protection system for protecting passenger in vehicle from collision
JP2007118797A (ja) 2005-10-28 2007-05-17 Toyota Motor Corp 衝突判定システム
US7556119B2 (en) * 2006-03-31 2009-07-07 Denso Corporation Vehicle collision sensing system
JP2008137491A (ja) 2006-12-01 2008-06-19 Calsonic Kansei Corp 車両用側面衝突検知装置
EP2045144A1 (de) 2007-10-02 2009-04-08 Continental Automotive GmbH Verfahren zum Erkennen einer Kollisionsseite bei einem Frontalaufprall
JP2009090816A (ja) 2007-10-09 2009-04-30 Honda Motor Co Ltd 車両の衝突判定装置
JP2009101837A (ja) 2007-10-23 2009-05-14 Calsonic Kansei Corp 乗員保護制御装置
US8155842B2 (en) * 2008-02-25 2012-04-10 Denso Corporation Occupant protection device for vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
European Search Report issued on Feb. 17, 2012.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140318245A1 (en) * 2011-11-24 2014-10-30 Dainese S.P.A. Impact detection device
US20150344039A1 (en) * 2013-11-06 2015-12-03 Hitachi Automotive Systems, Ltd. Vehicuar control device and fail-safe method
US9701318B2 (en) * 2013-11-08 2017-07-11 Hitachi Automotive Systems, Ltd. Vehicular control device and fail-safe method
US20150149007A1 (en) * 2013-11-26 2015-05-28 Hyundai Motor Company Vehicular control system and its operating method
US9278621B2 (en) * 2013-11-26 2016-03-08 Hyundai Motor Company Vehicular control system and its operating method
US20220340009A1 (en) * 2019-10-31 2022-10-27 Great Wall Motor Company Limited Vehicle control device, vehicle control system and vehicle
US11970065B2 (en) * 2019-10-31 2024-04-30 Great Wall Motor Company Limited Vehicle control device, vehicle control system and vehicle

Also Published As

Publication number Publication date
CN102189933B (zh) 2014-03-19
US20110224869A1 (en) 2011-09-15
EP2364883A3 (de) 2012-03-21
EP2364883A2 (de) 2011-09-14
CN102189933A (zh) 2011-09-21
JP5251905B2 (ja) 2013-07-31
EP2364883B1 (de) 2013-11-20
JP2011183929A (ja) 2011-09-22

Similar Documents

Publication Publication Date Title
US8892312B2 (en) Side collision determination apparatus for vehicle and high voltage power supply shut-off apparatus
US8825305B2 (en) Collision determination system, occupant restraint system, and vehicle
US10131307B2 (en) Activation control device for occupant protection device
US8612097B2 (en) Airbag deployment
CN104768805B (zh) 驾乘员保护装置的控制装置
CN113581119A (zh) 用于确定车辆碰撞类型的方法
JP4835344B2 (ja) 車両用乗員保護装置の起動制御装置
JP2012218550A (ja) 側面衝突検出システム、乗員拘束システム及び車両
JP2012224286A (ja) 乗員状態検知装置
JP6265181B2 (ja) 車両用エアバッグ制御システム
JP2019027833A (ja) 衝突検知装置
JP2015182584A (ja) 乗員保護制御装置
US11414034B2 (en) Occupant protection system
US8108107B2 (en) Safety system
JP7000087B2 (ja) 車両の前面衝突検出装置
JP2008247145A (ja) 車両用乗員拘束・運動制御装置システム
JP2013154838A (ja) 乗員保護制御装置
JP2012232617A (ja) セーフィング動作判断装置
JP2016043838A (ja) 車両回転検出装置
KR100603710B1 (ko) 차량용 에어백 장치에서 상대방 속도에 따른 에어백 전개제어 장치 및 방법
KR20130113014A (ko) 차량의 에어백 전개 제어 장치 및 방법
JP2019061824A (ja) 燃料電池異常推定装置及び燃料電池異常推定方法
JP5236126B2 (ja) 衝突検知装置
JP2018194365A (ja) 故障診断装置及び故障診断方法
JP2007320462A (ja) 車両用衝突検知装置および乗員保護システム

Legal Events

Date Code Title Description
AS Assignment

Owner name: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INAGAKI, TOMOHIRO;REEL/FRAME:025926/0370

Effective date: 20110207

STCF Information on status: patent grant

Free format text: PATENTED CASE

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551)

Year of fee payment: 4

AS Assignment

Owner name: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, JAPAN

Free format text: CHANGE OF ADDRESS;ASSIGNOR:MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA;REEL/FRAME:055472/0944

Effective date: 20190104

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8